package com.springchang.datastructures.tree.binarytree;

public abstract class AbstractTree<E extends Comparable<E>> implements Tree<E> {
    public void inorder() {
    }

    public void postorder() {
    }

    public void preorder() {
    }

    public boolean isEmpty() {
        return getSize() == 0;
    }

    public java.util.Iterator iterator() {
        return null;
    }
}
